Clamping device.



N. PIQUETTE. GLAMPING DEVICE. APPLIoATIoN FILED 11110.20, 1910.

A Patented May 2, 1911.

ns a 'l I FFIDI.

CLAMPING DEVICE.

To all whom it may concern:

Be it known that I, NAPOLEON PIQUETTE, a citizen of the United States,residing at Dollar Bay, in the county of Houghton and State of Michigan,have invented certain new and useful Improvements in Clamping Devices;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, whichform a part of this specification.

This invention relates to new and useful improvements in clampingdevices for attachment to tables, ledges, etc., for the purpose ofholding work of various kinds.

The invention comprises various details of constructions andcombinations and arrangements of parts which will be hereinafter fullydescribed and then specifically defined in the appended claim.

I illustrate my invention in the accompanying drawings, in which Figure1 is a perspective view showing the application of my invention to atable. Fig. 2 is a vertical sectional view, and Fig. 3 is a perspectiveview of the device removed from the table.

Reference now being had to the details of the drawings by letter, Adesignates a clamping member having integral arms A projecting therefromand parallel to each other and arranged in pairs with registeringapertures B.

D designates al second clamping aw which is provided with flanges D uponthe opposite longitudinal edges thereof. The clamping member D has alsolugs E projecting from its opposite edges and apertured as at E for thereception of an adjusting bolt F. A similar adjusting bolt II is passedthrough registering apertures in corresponding arms A of the clampingmember A and apertures A2 in the flanges D, thus affording means foradapting the clamping device to different thicknesses of tables, shelvesor ledges to which it may be desired to apply the device. A cam lever,designated by let- Specication of Letters Patent.

Application led December 20, 1910.

Patented May 2, 1911.

Serial No. 598,311.

ter Q, is pivotally mounted upon an adjusting bolt R which is adapted tobe held in corresponding perforations S formed in the lugs S at one endof the clamping member D and the end of said member D adjacent to whichthe cam lever is mounted is cut away or recessed as at J to allow saidlever to swing freely therethrough and against the under surface of thetable, shelf or other object to which the clamping device may be held.It will be noted that the member A has a horizontally projectingextension T, the opposite longitudinal edges of which are slightlycurved or bent toward the clamping member D and serving as frictionalmeans for securely holding the clamping members upon the table or otherobject to which the device is applied. i

Mounted upon the swiveled pin I is a jaw I having ears I2 with aperturesI3 therein through which a pivotal adjusting bolt L passes which alsopasses through the ears L upon the clamping jaw L2. At one end of thejaw I are ears L3 projecting at right angles therefrom and apertured forthe reception of an adjusting bolt L4 upon which a cam lever L5 ismounted, affording means foi` holding the two clamping jaws I and L2frictionally against the work to be held.

The application of my invention will be readily understood. By theprovision of the two clamping members A and D, the device may beadjusted to shelves or tables of different thicknesses and the cam leverQ. swung upon its pivot to cause the device to be securely held in placewhile the work may be held by the clamping jaws I and L2 by a similarfastening means consisting of the clamping lever L5 which may be thrownfrictionally against the under surface of the jaw L2, thus causing thetwo jaws to be securely held in clamping relation with each other.

lvVhat I claim to be new is z- A work holding device comprising twoclamping members, one of which has arms projecting at right anglestherefrom and perforated, adjusting bolts mounted in said perforationsand having a horizontally projecting portion designed to engage over theupper surface of the table, the other member provided with aperturedflanges, adjusting bolts, mounted in registering apertures In testimonywhereof I hereunto aix my in said arms and ianges, a Cam leverpivotsignature in the presence of two Witnesses. all connected to one osaid members a air 1 of 5(fzlamping jaws swivelly conneetedtoponeNAPOLIJON PIQUETTE' 5 of said members, and means for holding thelVitnesses:

jaws rictionally aga-inst the Work engaged VVILFRID DESILETS, thereby.CHAS. EsKELIN.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

